Ôn tập Unit 3 và 4 Tiếng Anh thí điểm lớp 12

REVISION:  UNIT  3 & 4

*Stress

Câu 1: A. lifestyle          B. product            C. friendly            D. campaign

Câu 2: A. natural           B. disposal           C. Habitat            D. Neighborhood

Câu 3: A. technology     B. conservation    C. initiative          D. environment

Câu 4: A. deplete           B. delay                C. climate             D. remove

Câu 5: A. clutter            B. pathway          C. asthma             D. effect

Câu 6: A. profession      B. consequence     C. interpret           D. objective

Câu 7 : A. assessment    B. measurement   C. description          D. effective

Câu 8: A. promote          B. entire                C. create                D. damage

Câu 9: A. overload         B. summarise        C. unemployed     D. opportunity

* Pronounce

Câu 1: A. carbon           B. environment    C. respiratory        D. disposal

Câu 2: A. emission        B. pesticide          C. surface             D. soot

Câu 3. A. damage          B. regional            C. growing           D. energy

Câu 4. A. depleted         B. wasted             C. reduced            D. affected

Câu 5: A. width             B. healthy             C. breathing           D. throat

u 6: A. goat                B. coast                 C. broaden            D. Throat

Câu 7: A. asked              B. moved              C. smoked             D. decreased

**** Choose the answer that is OPPOSITE in meaning to the underlided word.

Câu 1: Scientists are experimenting on ways to dispose of waste safely

A. eliminate                   B. conserve          C. deal with                   D. get used to

Câu 2: The burning of fossil fuels has led to air pollution and deforestation caused land erosion.

A. resulted in                           B. resulted from             C. brought about            D. caused

Câu 3. The air in this city contains a lot of harmful gases, which may do harm to the citizens.

A. dangerous                           B. beneficial                  C. toxic                          D. wasted

Câu 4: Stockholm dwellers are fortunate to live in one of the greatest capitals in the world.

A. lucky                         B. wealthy                      C. unlucky                      D. unhealthy

Câu 5: Regular exercise is essential to prolonging longevity.

A. frequent                     B. bodily                        C. occasional                           D. heavy

Câu 6: A judge must be impartial when he passes sentences on criminals.

A. biased                        B. attentive                     C. disinterested              D. neutral

Câu 7: There is no longer the extensive use of animals to test products. Only some are used.

A. specific                      B. widespread            C. limited                       D. included

Câu 8: I’m at a loss to how you are going to pass your subjects without studying. All you do is to play video games all day.

A. to try to understand                   B. to lose the game                   

C. to feel like a stranger                   D. to know a lot

Câu 9: Cholera is common in less developed countries due to poor water and sanitation conditions. It is estimated that 11 million cholera cases occur every year among children under five years of age.

A. rare                                   B. ordinary                    C. general                     D. Normal

Câu 10. The teacher gave some suggestions on what could come out for the examination.

A. effects              B. symptoms                 C. hints                          D. demonstrations

** Choose the answer that is CLOSEST in meaning to the underlided word.

Câu 1: The battery life of this laptop does not go beyond three hours. I have to charge the battery again after that.

A. expel                          B. continue           C. sustain                       D. exceed.

Câu 2 : The heavy rain and wind destroyed many houses and buildings in the town.

A. drizzle                        B. blizzard            C. typhoon                     D. downpour

Câu 3: The public health infrastructure of this country is poorly prepared for the emerging disease problems of a rapidly changing world.

A. widespread                          B. appearing                  C. serious                       D. minor.

Câu 4: Unemployment and inner city decay are inseparable issues which must be tackled together.

A. loosely related           B. closely related  C. completely different  D. quite similar

Câu 5: Educators are complaining that students rely on social media so much that they lose the ability to think critically.

A. depend on                  B. decide on                   C. insist on                     D. appear on

Câu 6. For environmental safety, we need to find ways to reduce emission of fumes and smoke of factories.

A. leak                  B. release              C. poison             D. pollutant

Câu 7. You should put yourself on the back for having achieved such a high score in the graduation exam.

A. criticize yourself                    B. wear a backpack       

C. praise yourself                      D. check up your back

Indicate the correct answer to each of the following questions.

Câu 1: The city council is discussing a detailed _____ plan for maintaining clean beaches and parks.

A. activity            B. action               C. measure           D. approach

Câu 2: To _____ green is to practice simple green lifestyles, which helps save the planet for further generation.        

A. go                     B. act                    C. make                D. get

Câu 3: It is advisable that people start using ______ products.

A. environment – friendly                                    B. friend of environment

C. friendly to environment                                   D. friendly environmentally

Câu 4: The kids often forget to turn off the lights when getting out of the room, ____ wastes a lot of electricity.

A. that                           B. where               C. which               D. what

Câu 5: People should _____ a green lifestyle to help conserve the natural resources.

A. adapt               B. adjust               C. adopt               D. adjoin

Câu 6: It is important to keep ourselves clean ____ germs can cause infection in parts of our body.

A. although          B. unless              C. while                D. because/

Câu 7: Organic vegetables are considered healthier ______ their high price.

A. although          B. despite             C. in spite             D. regardless

Câu 8: Environmentalists are worried that our natural resources will _____ if we don’t take initiative to go green.

A. run                                      B. deplete             C. deprive                      D. end

Câu 9: Many companies do not want to spend too much on waste _____ as the cost is really high.

A. discharge                             B. release              C. rid                              D. disposal

Câu 10: _____ we stop deforestation, a lot of species will lose their habitats.

A. if                                B. because            C. when                          D. unless

Câu 11: We reuse bags, old clothing and scrap paper at home _____ we can reduce waste.

A. lest                            B. in order to                 C. for fear of                            D. so that

Câu 12: Sometimes people just focus on the _____ benefits without thinking of the environmental risks of certain economic activities.

A. long – term               B. short – lived              C. immediate                  D. potential

Câu 13: Many people tend to be unware ____ the dangers from soot emissions.

A. to                               B. of                     C. about               D. over

Câu 14: In some cities of developed countries, buses and other means of public transport run _____ renewable energy.

A. to                               B. on                    C. by                    D. over

Câu 15: A: “Are you going to your family reunion this Christmas holiday?       

B:  “_____________”

A. As a matter of fact, I don’t mind it at all.                                            

B. I do. I’ve been excited about it now.

C. However, my parents and I are going to take a trip to Hawaii.

D. You bet. All my uncles and aunts will take their children along, too.

Câu 16: A: “Would you do me a favour?”    B: “_____________”

A. I would                                    B. with pleasure                       

C. I don’t know If I can                 D. what is the favour?

Câu 17: A: “It is a beautiful day today!. How about a little trip out into the country?”      B: “_________”

A. That sounds great. What should I do for the preparation?

B. I don’t know. I really haven’t thought about what we’d do.

C. well, would you like me to pack picnic or to buy something?

D. It’s all right. That sounds like a good idea.

Câu 18: The building ______ walls are made of glass is the place where I used to work.

A. whose              B. which               C. that                            D. of which

Câu 19: We could not handle the situation without you.

A. You didn’t help us handle the situation.

B. If you had not helped us, we could not have handled the situation.

C. If you did not help us, we could not handle the situation.

D. We will handle the situation if you help.

Câu 20: Don’t put the laptop away – I ________ using it yet

A. don’t finish               B. haven’t finished          C. didn’t finish               D. won’t finish

Câu 21: I’d rather you _______ spending too much time on Facebook.

A. stop                 B. should stop                         C. stopped                     D. had stopped

Câu 22: I can’t imagine _______ the beauty contest.

A. to win              B. winning            C. to winning                           D. win

Câu 23: My worst exam moment happened when I was caught ______ by my mum after a history exam.

A. cheat                B. cheating           C. to cheat                      D. cheated

Câu 24: I used to be addicted ______ chocolate chip cookies and my mum used to hide them from me.

A. with                 B. to                     C. at                               D. on

Câu 25: Carbon monoxide is a poisonous gas produced by the _______ burning of various fuels

A. incomplete                B. complete          C. incompletion              D. completion

Câu 26: The water in this river is serious polluted, which places some species of native fish in danger of extinction

Câu 27: The air in most classrooms in this school contains a lot of _____ gases, which is very worrying as many young children are studying here

A. harm                B. harmless          C. harmful            C. unharmful

Câu 28: In South Korea, the national government has been built English immersion schools all over the country.

Câu 29: The Teacher suspected the student ____ cheating on the test.

A. of           B. in                     C. about               D. on

Câu 30: I don’t know why you insist _____ blaming me ____ all my troubles

A. on / for            B. in / for              C. at / on              D. over / for

Câu 31: You shouldn’t rely ____ getting assistance from Frank.

A. at                     B. in                     C. on                    D. about

Câu 32: Mr. Green always worries ____ losing his position.

A. in                     B. at                     C. on                    D. about

Câu 33: Out boss objects _____ using any different methods.

A. of                     B. to                     C. with                           D. over

Câu 33. Terry always depends ____ his brother for assistance.

A. on                    B. in                     C. at                     D. of

Câu 34: The benefit of the internet of social media are _____

A. enormous                  B. huge                 C. large                 D. gigantic

Câu 35: Digital media have a great _____ on people’s lives and society.

A. decision           B. dependence                C. opinion            D. influence

Câu 36: Mass media have proven to be a (n) _______ part of people’s lives as hardly anyone can live without them.

A. unique             B. popular            C. diverse             D. inseparable

Câu 37 : Most people reply _____ on the mass media as their main source of information.

A. increasingly               B. heavily             C. remarkably                D. considerably

Câu 38: Because of cyber bullying, many Internet users delete their social ______

A. accounts          B. nicknames                 C passwords                           D. profiles

Câu 39: Green technology has been part of the _______________ to economic progress.

A. pathway          B. combustion               C. clutter              d. soot particles

Câu 40: They are searching ……………… the source of the leak.

A. for                             B. in                     C. of                     D. at

Câu 41: Last week we carried …………………a survey on social networking.

A. on                    B. in                     C. out                             D. at

Câu 42: Waiter: “How do you like your steak done?”      Customer: “______”

A. Well done, please.                         B. I don’t like it much.

C. I like it.                                          D. Not very well.

Câu 43: Kathy: “Should we use solar energy to protect the environment?”      Janet: “______”

A. No, thanks.                                    B. You don’t think so, do you?

C. Yes, I’ll go.                                   D. That’s a good idea.

Câu 44: “Did you like the film?” - “Well, after ______ the book, I was a bit disappointed.”

A. had read         B. having read                      C. I have read                     D. I am reading

Câu 45: Everybody should ______ an effort to go green, which can help to save our planet for future generations.

A. do                     B. take                  C. make                D. give

Câu 46: The proposal seemed like a good idea. The manager refused it.

A. The manager refused the proposal though it seemed like a good idea.

B. Since the proposal seemed like a good idea, the manager refused it.

C. The manager didn’t like the proposal because it didn’t seem like a good idea.

D. The proposal didn’t seemed like a good idea, so the manager didn’t accept it.

Câu 47: We spray pesticides and fertilizers on our crops. Some pesticides and fertilizers are found dangerous.

A. We spray pesticides and fertilizers, which are found dangerous, on our crops.

B. The pesticides and fertilizers we spray on our crops are found dangerous.

C. We spray pesticides and fertilizers on our crops, which are found dangerous.

D. Some of the pesticides and fertilizers we spray on our crops are found dangerous.

Câu 48: The hotel prides itself on ______ high standards.

A. protecting         B. reducing           C. containing        D. maintaining

Câu 49. He doesn't like going out. He doesn't invite any friends home.

A. He either goes out or invites any friends home.

B. He neither goes out nor invites any friends home.

C. He not only goes out but also invites any friends home.

D. He goes out but not invites any friends home.

Câu 50. “Which of the two boys is granted a scholarship? “            

- “_________ of them is .”

A. All                          B. None                  C. Neither               D. Both

Câu 51. I have three brothers, _____________ are businessmen.

     A. that all of them  B. who they all       C. all of whom        D. who all of them

Câu 52. It was _________________ that we spent the whole day at the beach.

     A. so nice a weather                               B. such nice weather

     C. such nice a weather                           D. so a  nice weather

Câu 53. “ What are you going to buy in this store?”

      _ “ Nothing, _________ want is too much expensive”

     A. That I                 B. What I                C. That what I        D. What do I

Câu 54. There’s no ______ fixing that toy. He’ll just break it again.

     A. point                  B. worth                 C. harm                  D. good

Câu 55. It is important that he ____________ with Dr. Baker immediately.

     A. will speak          B. speaks                C. speak                 D. speaks

Câu 56. I was just walking along the street when I __________ someone I hadn't seen for years.

      A. came across      B. came over           C. came by              D. came off

Câu 57. Who did you invite to dinner last night? – No one _______ than Frank and his family.

     A. another              B. the other             C. other                  D. the others

Câu 58. ______________ she spoke did I realized that she was English.

     A. No sooner          B. No longer           C. Not until            D. Hardly

Câu 59.  Henry_______________ a rich man today if he had been more careful in the past.

     A. will have been    B. will be                C. would have been       D. would be

Câu 60.  Only when the ground is kept moist, _________________ germinate.

     A. will grass seeds                                 B. grass seeds will  

C. does grass seeds                                      D. grass seeds does

Câu 61.  She would rather I ________ harder now.

     A. study                  B. studying             C. am studying       D. studied

Câu 62. The concert didn’t come ______ our expectations.

     A. up to                  B. up against          C. round                 D. up with

Câu 63. Excuse me, is anybody sitting here?   -“_________________________”.

     A. No, thanks.                                       B. Yes, I am so glad      

     C. Sorry, the seat is taken                      D. You are welcome.

Câu 64. My uncle _______ golf when he retired from work.   

     A. took on              B. took up              C. took over           D. took after

Câu 65. You’d better stop spending money, _______ you will end up in debt

     A. unless                 B. otherwise           C. if                        D. in case

Câu 66: Anne: "Make yourself at home".         -- John : "._________________."

    A. Yes, Can I help you?                        B. Not at all. Don't mention it. 

    C. Thanks! Same to you.                       D. That's very kind. Thank you

Câu 67. My car would not start ____________ Jenny’s started immediately.

     A. whereas              B. though                C. however             D. nevertheless

Câu 68. Some snakes lay eggs, but _______ give birth to live offspring.

     A. other                  B. the other             C. others                 D. the others

Câu 69. ____ have made communication faster and easier through the use of e-mail and the Internet is widely  recognized.

    A. It is that computers                           B. That computers  

C. Computers that                                   D. That it is computers

Câu 70. I can remember _________ you about this three times already.

                                    A. telling                 B. to tell              C. told           D. tell

Câu 71. ________ that she could not say anything.

      A. Upset was she                                  B. However upset was she   

      C. So upset was she that                      D. So upset she was

Câu 72. ___________________about genetic diseases has increased is welcome news.

     A. Scientific knowledge                                 B. It was scientific knowledge  

     C. Though scientific knowledge                    D. That scientific knowledge

Câu 73. You looked tired. _____________________ hard all day?

     A. Were you working                            B. Have you been working      

C. Do you work                                       D. Are you working

Câu 74. ______________ that the company has shown rapid growth in the last two ears.

     A. It is reported                              B. They are reported                              

C. The report was                               D. Reporting

Câu 75. Remember to ____________ the campfire before you leave.

     A. put off                B. put down           C. put out               D. put up

Câu 76._________ you visit him, give him my best wishes.

     A. Could                 B. Would                C. Should               D. Might

Câu 77. ___________ more help, I can call my neighbor.

      A. Should I need    B. I have needed     C. I should need      D. Needed

Câu 78. The house plants need_________ before noon.

A. watering                  B. to water              C. be watered          D. being watered

Câu 79. ______________you have watched, which film impresses you most ?

     A. All of films         B. All of the films   C. Of films all         D. Of all the films

Câu 80. I am _________tired to think about that problem at the moment.

     A. nearly                 B. simply                C. much more         D. far too

Câu 81. The teacher as well as all the students ______ very excited about going camping next week.

     A. was                      B. were                     C. is                         D. has been

Câu 82 ______he does sometimes interests me a lot.

     A. When                    B. Why                   C. What                    D. How

Câu 83.  ______________ of the students in my class could solve the problem yesterday.

     A. Not much           B. No                      C. None                  D. Neither

Câu 84. John was praised for his bravery, _______ his colleagues were criticized for their cowardice. 

     A. though               B. whereas              C. however             D. therefore

Câu 85. Her husband treated her badly. I'm surprised she ___________________ it for so long.

    A. put up with        B.  put off               C. put through        D. put up

Câu 86. I don’t think he will get ________ the shock in such a short period of time.

     A. off                      B. out                     C. over                    D. away

Câu 87. Martin tried on three jackets, ___________ fitted him.

     A. none                   B. none of which    C none of them       D. not

Câu 88. - Did your brother go to France ?   - No,  our parents suggested that we_____________ there at night.

     A. won’t go            B. don’ t go            C. not go                 D. not to go

Câu 89. Poaching ____ the greatest threat to many species.

A. creates             B. presents           C. poses               D. produces

Câu 90: Kevin put up a fence so that people didn’t walk on his garden.

          A. In order to stop people from walking on his garden, Kevin put up a fence.

          B. So as to encourage people to walk on his garden, Kevin put up a fence.

          C. People didn’t walk on his garden because Kevin put up a fence.

          D. Kevin put up a fence in order not to walk on his garden.

Câu 91: It's two years since he last went home.

 A. He hasn't gone home for two years.      

B. The last time he went home two years ago.

C. He didn't go home two years ago.                   

D. He hasn't gone home two years ago.

Câu 92. If you don’t ___  this opportunity, you might not get another one.

A. catch                         B. grab                           C. capture                      D. hold

Câu 93. Traffic congestion has become a major issue, while schools and hospital are ___.

A. overbearing              B. overdone                   C. overdeveloped           D. Overloaded

Câu 94. - "I wonder if I could possibly use your car for tonight?"   - "________ . I'm not using it anyhow."

A. I don't care                B. I don't know            C. Yes, indeed            D. Sure, go ahead

Câu 95. Patient: “Can I make an appointment to see the doctor, please?” – Receptionist: “_____”

A. Not at the moment. He can’t be disturbed.   

B. OK, you will need to check my diary.

 C. OK, let me just check the diary.                             

D. Have a seat and I’ll be with you in an hour

Indicate the underlined part that needs correction in each of the following questions.

Câu 92. As a child grows on, its physical health is affected by many elements in the air, water and food.

Câu 93. Have you ever been working in a place where your colleagues are from diverse cultural backgrounds?

Câu 94. Tom like to gossip about other people, so he doesn’t like them to gossip about him.

Câu 95. It was suggested that Pedro studies the material more thoroughly before attempting to pass the exam.

        Internet is the most important (1)______ of the new age media. The discovery of Internet can be called the biggest invention in mass media. In the earlier days, news used to (2)______ people only with the morning newspaper. But today, live updates reach us simultaneously as the events unfold. For example, the royal wedding of Kate Middleton and Prince William was watched live on the Internet (3)______ millions of people around the world. It’s inspired interaction and connectivity through its social networking medium. Internet has a plethora of websites (4)______ to various people, companies, brands, causes, activities, etc. The most significant utility of these websites is for providing information, search engines, downloads through libraries, and interaction through the (5)______ networking sites. Because of these websites, carrying out e-commerce transactions has also become easy.

1.       A. device               B. equipment        C. machine            D. tool

2.       A. get                    B. arrive                C. reach                D. come

3.       A. for                    B. by                     C. to                      D. at

4.       A. similar              B. addicted            C. devoted            D. dedicated

5.       A. mass                 B. society              C. socially             D. social  

Read the passage and indicate the correct answer to each of the questions    

          How do television and other visual media affect the lives of individuals and families all over the world? The media can be very helpful to people who carefully choose the movies and shows that they watch. With high quality programs in various fields of study, such as science, medicine, history, arts, and so on, TV and video tapes increase the viewers knowledge, they can also improve thinking ability. Moreover, TV benefits elderly people who cannot go out often, as well as patients in hospital. Additionally, it offers language learners the advantage of "real-life" audiovisual instruction and aural comprehension practice at any time of day or night. Television and video can also provide almost everyone with good entertainment – a pleasant way to relax and spend free time at home.

          Nevertheless, there are several serious disadvantages to the visual media. First of all, some people watch the "tube" for more hours a day than they do anything else. Instead of spending time taking care of their kids, many parents use TV as an "electronic baby-sitter". As a result, TV and video can easily replace family communication, physical activities and other interests. Secondly, those who, young and old, spend more time watching TV than manual work can easily suffer from near-sightedness and obesity.

          The third negative feature of the media is the amount of violence and horror on the screen that have bad effect on children and teenagers. Finally, the most negative effect of TV and video might be addiction. People often feel a strange and powerful need to watch TV or play a video tape even when they do not enjoy it or have free time for entertainment.

Câu 6. What is the main idea of the paragraph?

A. Children should not be allowed to watch, TV.

B. Television and other visual media have both advantages and disadvantages.

C. TV is a good baby-sitter.                                                                                 D. All are correct.

Câu 7. To many elderly people and patients in hospitals, TV ________.

A. is an ideal tool of entertainment                      B. must be banned

C. has bad effects on their health                         D. is not enjoyable

Câu 8. The word "tube" in the second paragraph means _______.

A. baby-sitter                 B. computer                  C. TV                             D. cassette player

Câu 9. What is the relation of TV and health?

A. TV makes a patient recover quickly.                                  B. TV is a good healer.

C. Watching TV is good for our health.

D. Watching TV too much easily leads to near-sightedness and obesity.

Câu 10. Which sentence is not true?

A. TV never causes addiction.

B. TV can help increase people's knowledge.

C. Watching TV is a pleasant way to relax and spend free time at home.

D. There are violence and horror on TV.

TOURISM

        Around 200 million people are employed in tourism worldwide, making it the largest industry in the modern global economy. It is estimated that three-quarters of a billion people (1) _____ on holiday each year, and indus­try planners expect this figure to double by 2020. Some of the biggest beneficiaries are less developed countries, where it is often their main source of income.

           (2)_____, along with the economic benefits, this mass movement of peo­ple has resulted in threats (3)_____ the environment. People often forget the damage caused by carbon emissions from aircraft, which contribute di­rectly to global warming. Deforestation has cleared land in order to build hotels, airports and roads, and this has destroyed wildlife. In some ar­eas, water shortages are now common (4) _____ of the need to fill swimming pools and water golf courses for tourists. By pushing up prices for goods and services, tourism can also be (5) _____ to the people who live in tourist destinations.

In response to these concerns, some travel operators now offer environment-friendly holidays. Many of these aim to reduce the negative effect of tourism by promoting only hotels that have invested in equipment to recycle waste and use energy and water efficiently. Increasingly, tourists are also being reminded to show respect for the customs of the people (6)______ countries they are going to visit, and to support local businesses, such as restaurants and shops, which depend (7) _____ tourism for their main income.

1. A. go                           B. leave                       C. move                       D. travel

2. A. However                B. Although                  C. Therefore                D. Furthermore

3. A. at                             B. to                            C. for                            D. on

4. A. thanks                            B. due                         C. because                   D. since

5. A. dangerous                      B. destructive              C. offensive                 D. harmful

6. A. whose                    B. that                            C. which               D. whom

7. A. in                                     B. on                    C. for                    D. at

          From the seeds themselves to the machinery, fertilizers and pesticides - The Green Revolution regimen depend heavily on technology. One (1) __alternative____ , however, depends much less on technology - organic farming. Many organic farmers use machinery, but (2_____ chemical fertilizers or pesticides. (3)______ chemical soil enrichers, they use animal manure and plant parts not used as food -,natural, organic fertilizers that are clearly a renewable (4_____ Organic farmers also use alternatives to pesticides; for example they may rely (5)____ natural predators of certain insect pests. If the need arises, they can buy the eggs and larvae of these natural predators and introduce them into their crop fields.

Question 1. A. alteration          B. alternate          C. alternative                  D.Alternation
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2. A. also                 B. for                  C. not                             D.All
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3. A. In spite of        B. On account of            C. In favour of     D. Instead of

Question 4. A. resource         B. source                        C. matter              D. Substance

Question 5. A. of                     B. in                               C. on                              D. to

          These days, it is impossible to open a newspaper (1)_____ reading about the damage we are doing to the environment. The earth is being threatened and the future looks bad. What can each of us do? We cannot clear up our (3) ________rivers and seas overnight. Nor can we stop the appearance of plants and animals. But we can stop adding to the problem (4)______scientists search for answers, and laws are passed in nature's defence

            It may not be easy to change your lifestyle (5)______, but some steps are easy to take: cut down the amount of driving you do, or use as little plastic as possible. It is also easy to save energy, which also reduces (6)______bills. We must all make a personal (7)_______________ to work for the future of our planet if we want to ensure a better world for our grandchildren.

Question 1. A. with                 B. without            C. and                            D. but

Question 2. A. and                  B. however           C. so                     D. moreover

Question 3. A.polluted  B. pollution                   C. polluting          D. pollute

Question 4. A. when                B. during              C. while                D. within

Question 5. A. complete          B. completeness   C.completely                  D. to complete

Question 6. A. household        B. home                C. house               D. domestic

Question 7. A. decide              B. to decide          C. decisive            D. decision

  

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